<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <link rel="stylesheet" href="style.css">
    <title>PC网页端布局</title>
</head>
<body>
    <nav id="nav">
        <section>
            <h1>桂林旅游社</h1>
            <ul>
                <li class="active"><a href="#">首页</li></a>
                <li><a href="#">旅游资讯</a></li>
                <li><a href="#">机票订购</a></li>
                <li><a href="#">风景欣赏</a></li>
                <li><a href="#">公司简介</a></li>
            </ul>
        </section>
        
    </nav>
    <header>header</header>
    <section>body</section>
    <footer>footer</footer>
</body>
</html>